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Thorne Research, Perfusia-SR, 120 Veggie Caps

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In Stock
  • Expiration Date: May 2018
  • Shipping Weight:
    0.35 lbs
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  • Product Code: THR-52502
  • UPC Code: 693749525028
  • Package Quantity: 120 Veggie Caps
  • Dimensions:
    2.6 x 2.6 x 5 in, 0.3 lbs
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Product Overview


  • Dietary Supplement
  • NSF Certified for Sport

Sustained-release L-arginine to support heart health, nitric oxide production, and optimal blood flow

When sufficient L-arginine is present:

  • Arteries relax, promoting optimal blood flow
  • As arteries relax, already normal blood pressure can be better maintained
  • Erections can occur in the normal course of intimacy
  • Increased work capacity during exercise is promoted
  • Lean muscle mass synthesis is supported
  • Sustained-release L-arginine supports cardiovascular function, wound healing, and immune function – and is a biological precursor to nitric oxide

L-arginine is a semi-essential amino acid involved in multiple areas of human physiology and metabolism. L-arginine significantly affects endocrine function and helps regulate the release of neurotransmitter chemicals, insulin, glucagon (which has the opposite effect of insulin; i.e., it raises blood sugar), and growth hormone. However, one of L-arginine's most compelling contributions to human physiology is its role as a biological precursor of nitric oxide. The vascular endothelium (the lining of the arteries) creates nitric oxide from L-arginine, resulting primarily in blood vessel relaxation. This property is important to maintaining good vascular health, heart health, reproductive health, and protection against oxidative damage.

Maintaining the natural and healthy function of the vascular endothelium depends on an adequate supply of L-arginine being available to these cells. As mentioned above, the conversion of L-arginine to nitric oxide is responsible for these functions by making the endothelial cells more resistant to oxidative damage and adhesion by otherwise harmful substances. Numerous studies have demonstrated that individuals with sufficient nitric oxide production by endothelial cells maintain the best cardiovascular health.

In a large, double-blind clinical trial that observed male reproductive health issues, 1.6 grams of L-arginine given daily for six weeks resulted in improvement in reproductive health in those men who had low nitric oxide metabolism.

Like most amino acids, L-arginine functions as a building block for proteins; however, its presence also appears to support wound healing. Numerous studies show L-arginine supplementation benefits wound healing time and the strength of the tissues in and around the wound during the healing phase.

Without adequate L-arginine (and subsequently, nitric oxide) available to the vascular endothelial cells, arteries might not optimally dilate, which can result in less than optimal blood flow to the organs and extremities.

L-arginine is absorbed and metabolized very quickly in the body, which usually necessitates taking it multiple time during the day. However, sustained-release Perfusia-SR maintains an optimal level of L-arginine over 24 hours with suggested twice-daily use.

Studies on Perfusia-SR show increased blood flow to the heart muscle and the extremities, maintenance of already normal blood pressure, and improved vascular elasticity. A recent study demonstrated improvements in blood flow after Perfusia-SR supplementation in individuals who had less than optimum heart health. In another study, Perfusia-SR was given to 29 healthy volunteers for one week and significant support for a healthy cardiovascular system was observed.

Suggested Use

Take 2 capsules two times daily or as recommended by your health-care practitioner/

Other Ingredients

High and low viscosity hydroxypropyl methylcellulose and magnesium citrate laurate (time-sorb†), hypromellose (derived from cellulose), capsule, leucine, silicon dioxide.

†L-Arginine complexed with Time-Sorb, a time-release matrix.


Tamper Evident: Use only if bottle is sealed.

If pregnant, consult your health-care practitioner before using this product.

Store tightly sealed in a cool, dry place.

Supplement Facts
Serving Size: Two Capsules
Servings Per Container: 60
  Amount Per Serving %Daily Value
L-Arginine † 1 g *
*Daily Value (DV) not established.
†L-Arginine complexed with Time-Sorb, a time-release matrix.
iHerb Customer Reviews

do you have a problem with blood pressure ? than you might be need this.

Posted by tripleschizo on Oct 31, 2016

this freakin magic pills form Throne , works great for my blood problem . if you are sensivitve body conditions , and feel something problem with your heart , blood temperture , than this might be works for you. but as always pacakging was dissapointed , it shipped like few bucks stuff , i dose buy few bucks stuff , so it was acceptable . 5 stars apporved november one 2016 KST

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Great supplement!

Posted by 5249018757219179084 on Oct 17, 2016

Works as my practioner advised.

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Valued Product

Posted by 5625779604803800296 on May 03, 2016

Having undertaken readings into the research of the studies that have been done with Perfusia SR, I decided to try some. Along with other supplements there seems to be merit in the belief that it is good for the arteries and "Blood Pressure". I have found that it has contributed to lowering blood pressure for a family member. So it is definitely worth trying.

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Helping my husband with a bad heart

Posted by Rena61 on Jun 12, 2015

We are giving this a try, so far it seems to be helping with his mis-beats. He is not having them as frequently. Time will tell though.

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Exciting Product

Posted by SRicketts on Mar 27, 2013

Have had my husband on this product for several months now. Hoping to improve his blood pressure but haven't had it taken lately.

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